Device for adjusting truss-pads.



No. 658,467. Patented Sept; 25, 1900.

A. B. c. S'AWYER.

DEVICE FOR ADJUSTING TBU SS PADS.

(Application filed my 11, 1899.)

(No Model.)

.D I a, A

I z 5 y; f

I N d a 6 .B 5/

I A H A A ./////////////////////////A f??? With-65565 472572220 5155x2096?" w Inuenvr attorrwy r-A'rns Nrrn DEVICE FOR ADJUSTING TRUSS-PADS.

SPECIFICATION forming part of Letters Patent No. 658,467, dated September 25, 1900. Application filed May 11, 1899. Serial No. 716,399. (No model.)

To It whom it may concern:

Be it known that 1, ANDREW B. O. SAW- YER, a citizen of the United States, residing at Albany, in the county of Albany and State of New York, have invented new and useful Improvements in Devices for Making Lengthwise and Rotal Adjustments of Connecting- Pieces, of which the following is a specification.

My invention consists in certain novel features of construction and combination and arrangements of parts, as hereinafter set forth; and the objects and advantages of the invention will be fully understood from the following description and claims, when taken in connection with the annexed drawings, in which Figure 1 is a plan of the essential parts embodying the features of my invention. Fig. 2 is a longitudinal section of the same. Fig. 3 is a plan illustrating a modification of arrangements of parts. Fig. 4 is a section in elevation of the modification. Fig. 5 is a section taken at line 1 in Fig. 1. Fig. 6is asection, on an enlarged scale, illustrating a modification of certain parts. Fig. 7 is a section of a screw-threaded stem, illustrating a modification of manner of grooving the same; and Fig. 8 shows the device applied to a truss for hernia.

Similar letters of reference refer to like parts throughout the several views.

In the drawings, A represents a part or piece which is to be adjustably connected to another piece-say piece B-so that each may at will be moved longitudinally and rotally in relation to the other and be secured in place and position when adjusted. This piece A may be of any selected form to adapt it for use for purposes intended and is provided with a screw-threaded cylindrical stem A, which is grooved by a suitable number of grooves a, run longitudinally to any preferred distance back from the outer end of the said stem and sunken to any preferred depth in the same or the screw-threads which these grooves may cross, as may be found to be advantageous. The screw-threads 3 may be V- shaped, rectangular, rounded, or other form and are run either right or left hand from the outer end of said stem back to a distance therefrom as may be found to be suitable for providing for the maximum length of the longitudinal adjustment preferred or necessary to be made. In Fig. 5 these longitudinal grooves a are shown to be provided in a se ries in close order, occupying about one-half of the whole circumference of the screwthreaded portion of the stem A, while the screw-threads in the other half of the circumference are shown to remain uncut by grooves. This modification may be used with advantage when the relative rotal movement of pieces A or B are to be about or less thanone-half of a full revolution of the part or piece to have rotal adjustment. 'In modification in Fig. 6 these grooves a are shown to occur at regular intervals in the entire circumference of the screw-threaded portion of stem A, and although shown to be made in open order, for better illustration, yet it is to be understood that they may be provided in closer order than shown. These grooves a may be V-shaped, rectangular, rounded, or of other form, as may be advantageous.

The piece B may be of any suitable form for adapting it for use in connection with some other piece or device (not shown in Figs. 1 to 6) and comprises (among other portions) one or more screw-threaded nut portions b and seat I), connected with said hot or nut portions and adapted to supporta portion of the screw-threaded stem A, which adjoins the portions of the latter within the said screw-threaded nut portions of this piece B. In Figs. 1 and 2 this device is shown to have this piece 13 provided with but one screw-threaded nut portion b,-while in Figs. 3 and 4 two screw-threaded nut portions 1) b are shown to be employed in connection with seat I), as indicated by full and dotted lines in said figures. When two screw-threaded 'nut portions 1) b are employed, they are arranged in their connection with seat I) to be at a suitable distance apart for receiving between them a removable piece 0.

Piece 0 is a removable locking-clutch pro vided in its lower side with concavity .0 made with a curvature corresponding to that of the circumference of the screw-tlireaded stem A of piece A and having the tongue 0 projected from the body of this clutch and the circumferential line of said groove 0 and running in direction of the length of the lat.-

ter, as indicated by dotted lines o in Figs. 1 and 2. This tongue 0 may be in cross-area V-shaped, square, rounded, or other form corresponding with that of the longitudinal groove or grooves a in the screw-threaded portion A of piece A, so as to nicely fit the same, as shown in Figs. 5 and 6, when this locking-clutch O is in place adjoining nut portion 1) of piece B, as shown in Figs. 1 and 2, or between two nut portions 1) b, as shown in Figs. 3 and 4E. plied to a groove side or the screw-threaded stem A by simply placing it in proper position, so that tongue 0 may engage with one of the grooves a, as shown in Figs. 5 and 6, when it will be secured in place by means of any suitable devices adapted to securely hold said piece 0 fight against a grooved side of the said screw-threadedstem. Screws D D, passed through perforations d in the outer end portions of said clutch-piece C and screwing into the screw-threaded perforations d in the end portions of piece B, as shown in Fig. 5, may be employed for binding said clutch-piece in place. Fig. 6 shows a modification of means for the same purpose in which one of. the outer ends of clutch-piece Cis shown to be hinged by means of suitable hinge-knuckles d and pintle d to piece B, while the opposite end is secured by means of screw D, the same as illustrated in Figs. 5

and 6.

My above-described device by means of piece B (which comprises with it one or more screwthreaded nuts I) and seat 19) may be secured to some piece or part of a selected other device or thing which it may be desired to move longitudinally and rotatively in relation to the longitudinally-grooved screw-threaded cylindrical stem A for effecting a preferred adjustment of parts or devices. To illustrate one such application of my above-described device, I have shown it applied to a pad of a hernia-truss,which pad P, Fig. 8, may at times be required to be longitudinally moved in one direction or the other in relation to the piece A and also in a rotational direction in relation to the same piece A for properly placing the pad and causing a particular portion of its surface to have a proper bearing on the particular place of hernia. When it is desired to make a longitudinal adjustment of the piece B or piece A, the clutch-piece G will be loosened, so that its tongue 0' will be freed from the grooves a of the stem of piece A, when the latteror piece B may be rotated in relation to the other, so that the coacting screwthreads of the stem A of the one and screwthreaded nuts Z) and seat I) of the other may operate to effect a longitudinal movement of the said pieces A and B in relation to each other, while the rotal adjustment will be ef- This lockingclutch O is ap fected by turning to a suitable degree in the proper direction the stem A or piece 13 for carrying the tongue 0 of clutch-piece O opposite the particular groove (1 of the series of grooves in stem A it is to coact with for holding piece B fixed from turning in relation to the piece A. Then the clutch-piece (J will be secured in place by means provided as above described, with its tongue 0' holding with one of the grooves a provided in the stem A.

What I claim, and desire to secure by Letters Patent, is

l. The combination with a screw-threaded cylindrical piece having groove 66 running transverse to the direction of the screwthreads on the same, and piece B having integral with it nut 11 provided with screwthreads corresponding with those on said cylindrical piece, and seat I) adapted to support a portion of said screw-threaded and grooved cylindrical piece which is adjoining said nut, of clam ping-piece 0 having integral with it tongue 0 seating in said groove, and devices described binding said clam ping-piece and its connected tongue in secure holding with the said grooved screw-threaded cylindrical piece, substantially as set forth.

2. The combination with a screw-threaded cylindrical piece having in it a series of Iongitudinal grooves at, and piece B comprising one or more nuts I) provided with screwthreads for coaction with those of said cylindrical piece, and seat 1) adapted to receive a portion of the latter piece which may be adjoining one of nuts b, of the clutch-piece 0 having in it concavity c and tongue 0' projected from the bottom of said concavityand adapted to be engaged at pleasure with any one of the series of grooves a, and means described holding said clutch-piece and its tongue in engagement with piece A, and a selected groove in the latter, substantially as set forth.

3. The combination with a screw-threaded cylindrical piece A, having a series of longitudinal grooves a running transverse to its screw-threads, and piece B comprising seat b and one or more screw-threaded nuts I) within which said piece may be screwed in either direction,of a piece secured to piece B and adapted together with the latter piece, to be moved and adjusted both longitudinally and rotational in relation to said screwthreaded piece 1A, a clutch-piece 0 provided with tongue 0', and means described for holding said tongue in engagement with any selected one of said grooves a substantially as set forth.

ANDREW B. C. SAWYER. Witnesses:

CHARLES SELKIRK, A. SELKIRK, Jr. .7 

